Voltage and current measurement: The smart digital sensor pen tester accurately measures voltage and current, providing essential data for electrical work and DIY projects. Clear LCD display: A readable LCD display shows measured values clearly, helping you work accurately and with confidence. Builtin torch: The multifunctional tester pen includes a builtin torch for illuminating dark work areas, improving test accuracy in lowlight conditions. Low battery indicator: A dedicated low battery indicator alerts you when power is running low, preventing unexpected outages and ensuring you are always informed. Function and usability: This penstyle tester combines digital sensing with practical features to support precise testing in the field and at home. It is designed for standard electrical testing tasks and everyday use by electricians and hobbyists. Size and form factor: Penstyle design enables easy handling, portable carry, and quick deployment in tight spaces without added bulk. Performance: Fast, readable readings on the LCD display combined with a practical torch and battery status notification enhance reliability during inspections and troubleshooting. Use scenarios: Onsite electrical installations and troubleshooting: Check circuits, outlets, and wiring quickly with realtime voltage and current readings to confirm proper operation. Lowlight environments: Inspect electrical panels, basements, or attics where lighting is poor, using the builtin torch to improve visibility and accuracy. DIY electronics and appliance maintenance: Verify voltage and current draw during hobby projects or routine maintenance to ensure safe operation and performance.